Estimator's Piping Man-hours Tool: Estimating Man-hours for Carbon Steel Process Piping Projects. Manual of Man-hours, ExamplesEbookEstimator's Piping Man-hours Tool: Estimating Man-hours for Carbon Steel Process Piping Projects. Manual of Man-hours, ExamplesbyGustavo CincaRating: 0 out of 5 stars0 ratingsSave Estimator's Piping Man-hours Tool: Estimating Man-hours for Carbon Steel Process Piping Projects. Manual of Man-hours, Examples for later